Home / 2,724.39-3,761.09-2,133.90

Finding the Fourth Proportional to 2,724.39, 3,761.09 and 2,133.90

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Solution

The fourth proportional to 2,724.39, 3,761.09 and 2,133.90 is: 2,945.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,724.39 : 3,761.09 = 2,133.90 : x
  2. Step 2: Convert to fraction form
    2,724.39/3,761.09 = 2,133.90/x
  3. Step 3: Cross multiply
    2,724.39x = 3,761.09 × 2,133.90
  4. Step 4: Simplify right side
    2,724.39x = 8,025,779.28
  5. Step 5: Solve for x
    x = 8,025,779.28/2,724.39
  6. Step 6: Final answer
    x = 2,945.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.